Cable plastic extruding machine
The cable extrusion machine addresses mixing inefficiencies by using a spiral feeder with dual filters and variable shaft design to uniformly mix plastic materials, improving efficiency and reducing costs.
Patent Information
- Application Number
- CN202510744543.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2025-07-15
AI Technical Summary
Existing cable extruders are inefficient and costly when mixing plastic raw materials, and have complex operational processes.
Based on the existing equipment, the structure of screen plate and material separation block is added. Through the groove design on the screen plate and the main shaft, combined with the setting of the material separation block, pressure changes and extrusion are formed to improve the mixing efficiency of raw materials.
It improves the mixing efficiency of plastic raw materials, reduces equipment costs, simplifies operating procedures, and improves production efficiency.
Smart Images
Figure CN120307611A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cable processing equipment, and in particular to a cable extruder. Background Art
[0002] A cable extruder is a device for processing an insulating layer on a wire, which can heat and melt plastic raw materials and then extrude them into a shape. When using a mixed raw material in an existing extruder, it is very difficult to mix the raw materials evenly at one time, and it is necessary to mix them repeatedly for many times before the extrusion process can be carried out. The operation process is complicated and the production efficiency is affected.
[0003] In the prior art, the invention patent with the authorization announcement number CN118493804B provides a plastic extruder for cable processing. By setting a conveying and stirring mechanism, when the output rotating shaft rotates to drive the gear to rotate, the gear rotates to drive the toothed ring to rotate, and the toothed ring rotates to drive the feeding rotating shaft to rotate. Since the moving block is rotationally connected to the feeding rotating shaft through a bidirectional thread groove, the feeding rotating shaft rotates to drive the moving block to reciprocate. The reciprocating movement of the moving block drives the sliding sleeve on the connecting rod to reciprocate, the reciprocating movement of the sliding sleeve drives the moving column between the spacer rings to reciprocate, the reciprocating movement of the moving column drives the moving blade on the sealing piece to reciprocate, and at this time, the feeding rotating shaft rotates to drive the fixed blade to rotate, and the feeding rotating shaft rotates to drive the moving blade to rotate. Such a setting is beneficial to evenly stir various plastic raw materials inside the feeding cylinder.
[0004] In the process of implementing the present invention, the inventor found that there are at least the following problems in the prior art: Many stirring structures are added to the original plastic extruder in the patented technology, which improves the mixing efficiency of plastic raw materials, but at the same time increases the equipment cost. Summary of the Invention
[0005] In view of the deficiencies of the prior art, the present invention develops a cable extruder. The cable extruder makes simple modifications on the basis of the existing equipment, thereby improving the mixing efficiency of plastic raw materials, saving the equipment cost, and improving the production efficiency.
[0006] The technical solution for the present invention to solve the technical problem is as follows: An embodiment of the present invention provides a cable extruder, which includes a spiral feeder. The spiral feeder includes a main shaft and a main sleeve. A spiral groove is provided on the surface of the main shaft. One end of the main shaft is arranged in the main sleeve, and the other end is arranged outside the main sleeve. The top surface of the spiral groove of the main shaft fits with the inner wall of the main sleeve. The spiral feeder further includes a second sleeve, a discharge pipe, a first sieve plate, and a second sieve plate. Flange plates are provided at both ends of the main sleeve. The second sleeve and the discharge pipe are respectively connected to both ends of the main sleeve through the flange plates. The end of the main shaft located outside the main sleeve penetrates through the second sleeve. The first sieve plate and the second sieve plate are circular plates with a plurality of through holes on their surfaces. The first sieve plate is arranged between the main sleeve and the discharge pipe, and the second sieve plate is arranged between the second sleeve and the main sleeve. A groove is provided on the main shaft, and the second sieve plate is stuck in the groove on the main shaft.
[0007] As an optimization, the cross-section of the groove on the main shaft is trapezoidal. A through hole is provided at the center of the second sieve plate, and the diameter of the through hole is larger than the diameter of the bottom of the groove of the main shaft. The second sieve plate is evenly divided into two pieces from the center.
[0008] As an optimization, the cable extruder further includes a motor, a gearbox, a feeding hopper, and an extrusion die. The motor is connected to the main shaft through the gearbox. The feeding hopper is connected to the side of the second sleeve, and the extrusion die is connected to the discharge pipe.
[0009] As an optimization, the diameter of the end of the main shaft close to the extrusion die is larger than the diameter of the end far from the extrusion die.
[0010] As an optimization, the cable extruder further includes a bracket, and the motor, the gearbox, and the spiral feeder are all installed on the bracket.
[0011] As an optimization, a first material dividing block is further provided in the spiral groove of the main shaft. The first material dividing block is triangular, and the sharp angle of the first material dividing block points to the incoming material direction of the spiral groove. At least two first material dividing blocks are arranged side by side.
[0012] As an optimization, a second material dividing block is further provided in the spiral groove of the main shaft. The second material dividing block is triangular, and the sharp angle of the second material dividing block points to the incoming material direction of the spiral groove. The second material dividing block is arranged at the center of the spiral groove.
[0013] As an optimization, an aggregate block is further provided in the spiral groove of the main shaft. One aggregate block is provided on each side of the front end of the second material dividing block. The two aggregate blocks and the spiral groove form a funnel shape with an open bottom.
[0014] As an optimization, the spiral feeder further includes a heating pipe, and the heating pipe is wrapped around the outside of the second sleeve and the main sleeve. The outside of the second sleeve, the main sleeve, and the discharge pipe is wrapped with a heat preservation sleeve.
[0015] As an optimization, the spiral feeder further includes a pressure gauge, and the pressure gauge is installed on the main sleeve.
[0016] The effects provided in the summary of the invention are only the effects of the embodiments, rather than all the effects of the invention. The above technical solutions have the following advantages or beneficial effects: 1. The cable extruder is simply modified on the basis of the existing equipment, and a first sieve plate and a second sieve plate are added. When the plastic raw material is extruded through the first sieve plate and the second sieve plate, different components in the raw material are extruded and mixed together. After being shunted through the mesh sieve and then mixed again, the mixing efficiency of the plastic raw material is improved; by setting grooves on the main shaft and clamping the second sieve plate in the grooves on the main shaft, the pressure of the plastic raw material decreases before passing through the second sieve plate, increases when passing through the second sieve plate, and gradually increases after passing through the second sieve plate. The pressure change can improve the mixing efficiency of the plastic raw material, save the equipment cost, and improve the production efficiency.
[0017] 2. By setting the second sieve plate to be bisected into two pieces from the center, it can be conveniently installed in the groove on the main shaft.
[0018] 3. By setting the diameter of the end of the main shaft close to the extrusion die to be larger than the diameter of the end far from the extrusion die, and the depth of the spiral groove on the main shaft gradually decreases, an extrusion effect is formed on the plastic raw material, and the mixing efficiency of the plastic raw material is improved.
[0019] 4. By arranging a first material dividing block and a second material dividing block in the spiral groove of the main shaft, the plastic raw material can be extruded and shunted, forming an effect similar to stirring, and the mixing efficiency of the plastic raw material is improved. By arranging an aggregate block on each side of the front end of the second material dividing block and forming a funnel shape with an open bottom, the plastic raw material can be concentrated to pass through the pointed corner position of the second material dividing block, reducing the cross-sectional area of the flow channel. The cross-section of the plastic raw material correspondingly decreases, and the plastic raw material can be divided into two more uniform parts, improving the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a perspective view of an embodiment of the present invention.
[0021] Figure 2 It is a front view of an embodiment of the present invention.
[0022] Figure 3 It is a front view of the spiral feeder with the heat preservation sleeve hidden in an embodiment of the present invention.
[0023] Figure 4 It is Figure 3 A sectional view taken along the direction of A-A.
[0024] Figure 5 It is an exploded view of the spiral feeder with the heat preservation sleeve hidden in an embodiment of the present invention.
[0025] Figure 6 It is a front view of the main shaft in an embodiment of the present invention.
[0026] Figure 7 is Figure 4 The partial enlarged view of area B in
[0027] Figure 8 is Figure 4 The partial enlarged view of area C in
[0028] Figure 9 is Figure 6 The partial enlarged view of area D in
[0029] Figure 10 The perspective view of the first sieve plate in an embodiment of the present invention.
[0030] Figure 11 The perspective view of the second sieve plate in an embodiment of the present invention.
[0031] Wherein: motor 1, gearbox 2, screw feeder 3, feeding hopper 4, bracket 5, extrusion die 6, main shaft 31, second sleeve 32, main sleeve 33, discharge pipe 34, heating pipe 35, pressure gauge 36, first sieve plate 38, second sieve plate 39, first material distribution block 311, second material distribution block 312, aggregate block 313. Specific embodiments
[0032] In order to clearly illustrate the technical features of the present solution, the present invention will be described in detail below through specific embodiments and in conjunction with its accompanying drawings.
[0033] Figures 1 to 11 An embodiment of the present invention is as Figure 1 shown, a cable extruder includes a screw feeder 3, a motor 1, a gearbox 2, a feeding hopper 4, an extrusion die 6, and a bracket 5. The motor 1, the gearbox 2, and the screw feeder 3 are all installed on the bracket 5.
[0034] As Figures 3 to 9 shown, the screw feeder 3 includes a main shaft 31 and a main sleeve 33. A spiral groove is provided on the surface of the main shaft 31. One end of the main shaft 31 is arranged in the main sleeve 33, and the other end is arranged outside the main sleeve 33. The top surface of the spiral groove of the main shaft 31 is in contact with the inner wall of the main sleeve 33. The screw feeder 3 further includes a second sleeve 32, a discharge pipe 34, a first sieve plate 38, and a second sieve plate 39. Flange plates are provided at both ends of the main sleeve 33. The second sleeve 32 and the discharge pipe 34 are respectively connected to both ends of the main sleeve 33 through the flange plates. One end of the main shaft 31 located outside the main sleeve 33 penetrates through the second sleeve 32.
[0035] As Figure 10 、 Figure 11As shown, the first sieve plate 38 and the second sieve plate 39 are circular plates with multiple through holes on their surfaces. A through hole is provided at the center of the second sieve plate 39, and the diameter of the through hole is larger than the diameter of the bottom of the groove on the main shaft 31. The second sieve plate 39 is divided into two equal parts from the center. By setting the second sieve plate 39 to be divided into two equal parts from the center, the second sieve plate 39 can be conveniently installed in the groove on the main shaft 31.
[0036] As Figure 8 shown, the first sieve plate 38 is arranged between the main sleeve 33 and the discharge pipe 34. As Figure 7 shown, the second sieve plate 39 is arranged between the second sleeve 32 and the main sleeve 33. A groove is provided on the main shaft 31, and the second sieve plate 39 is stuck in the groove on the main shaft 31. The cross-section of the groove on the main shaft 31 is trapezoidal.
[0037] As Figure 1 shown, the motor 1 is connected to the main shaft 31 through the gearbox 2. The feeding hopper 4 is connected to the side of the second sleeve 32, and the extrusion die 6 is connected to the discharge pipe 34.
[0038] As Figure 6 shown, the diameter of one end of the main shaft 31 close to the extrusion die 6 is larger than the diameter of the end far from the extrusion die 6.
[0039] As Figure 9 shown, a first material distributing block 311, a second material distributing block 312, and an aggregate block 313 are further arranged in the spiral groove of the main shaft 31. The first material distributing block 311 is triangular, and the pointed angle of the first material distributing block 311 points to the incoming material direction of the spiral groove. Two first material distributing blocks 311 are arranged side by side. The second material distributing block 312 is triangular, and the pointed angle of the second material distributing block 312 points to the incoming material direction of the spiral groove. The second material distributing block 312 is arranged at the center of the spiral groove. An aggregate block 313 is arranged on each side of the front end of the second material distributing block 312. The two aggregate blocks 313 and the spiral groove form a funnel shape with an open bottom.
[0040] As Figure 3 shown, the screw feeder 3 further includes a heating pipe 35. The heating pipe 35 is wrapped around the outside of the second sleeve 32 and the main sleeve 33. As Figure 1 shown, the outside of the second sleeve 32, the main sleeve 33, and the discharge pipe 34 is wrapped with a heat insulation sleeve. The screw feeder 3 further includes a pressure gauge 36. The pressure gauge 36 is installed on the main sleeve 33.
[0041] The cable extruder has been simply modified on the basis of the existing equipment by adding a first sieve plate 38 and a second sieve plate 39. When the plastic raw material is extruded through the first sieve plate 38 and the second sieve plate 39, different components in the raw material are extruded and mixed together, and then remixed after being shunted by the mesh sieve, improving the mixing efficiency of the plastic raw material. By setting a groove on the main shaft 31 and clamping the second sieve plate 39 in the groove on the main shaft 31, the pressure of the plastic raw material decreases before passing through the second sieve plate 39, increases when passing through the second sieve plate 39, and gradually increases after passing through the second sieve plate 39. The pressure change can improve the mixing efficiency of the plastic raw material, save equipment costs, and improve production efficiency.
[0042] By setting the diameter of the main shaft 31 near the extrusion die 6 to be larger than the diameter at the end far from the extrusion die 6, and the depth of the spiral groove on the main shaft 31 gradually decreases, an extrusion effect is formed on the plastic raw material, improving the mixing efficiency of the plastic raw material.
[0043] By arranging a first material distribution block 311 and a second material distribution block 312 in the spiral groove of the main shaft 31, the plastic raw material can be extruded and shunted, forming an effect similar to stirring, improving the mixing efficiency of the plastic raw material. By respectively arranging an aggregate block 313 on both sides of the front end of the second material distribution block 312 to form a funnel shape with an open bottom, the plastic raw material can be concentrated to pass through the sharp corner position of the second material distribution block 312, reducing the cross-sectional area of the flow channel, and the cross-section of the plastic raw material correspondingly decreases, and the plastic raw material can be divided into two more uniform parts, improving the mixing efficiency.
[0044] Although the specific embodiments of the invention have been described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.
Claims
1. A cable extruder, comprising a screw feeder (3), the screw feeder (3) including a main shaft (31) and a main sleeve (33), a spiral groove being provided on the surface of the main shaft (31), one end of the main shaft (31) being disposed in the main sleeve (33) and the other end being disposed outside the main sleeve (33), the top surface of the spiral groove of the main shaft (31) being in contact with the inner wall of the main sleeve (33), characterized in that: The screw feeder (3) further includes a second sleeve (32), a discharge pipe (34), a first sieve plate (38), and a second sieve plate (39). Flange plates are provided at both ends of the main sleeve (33). The second sleeve (32) and the discharge pipe (34) are respectively connected to both ends of the main sleeve (33) through the flange plates. One end of the main shaft (31) located outside the main sleeve (33) penetrates through the second sleeve (32). The first sieve plate (38) and the second sieve plate (39) are circular plates with a plurality of through holes on their surfaces. The first sieve plate (38) is arranged between the main sleeve (33) and the discharge pipe (34), and the second sieve plate (39) is arranged between the second sleeve (32) and the main sleeve (33). Grooves are provided on the main shaft (31), and the second sieve plate (39) is stuck in the grooves on the main shaft (31).
2. The cable extruder according to claim 1, characterized in that, The cross-section of the groove on the main shaft (31) is trapezoidal. A through hole is provided at the center of the second sieve plate (39). The diameter of the through hole is larger than the diameter of the bottom of the groove on the main shaft (31). The second sieve plate (39) is bisected into two pieces from the center.
3. A cable extruder according to claim 1, characterized in that, The cable extruder further includes a motor (1), a gearbox (2), a feeding hopper (4), and an extrusion die (6). The motor (1) is connected to the main shaft (31) through the gearbox (2). The feeding hopper (4) is connected to the side surface of the second sleeve (32), and the extrusion die (6) is connected to the discharge pipe (34).
4. The cable extruder according to claim 1, characterized in that, The diameter of one end of the main shaft (31) close to the extrusion die (6) is larger than the diameter of the end far from the extrusion die (6).
5. A cable extruder according to claim 3, characterized in that, The cable extruder further includes a bracket (5). The motor (1), the gearbox (2), and the screw feeder (3) are all installed on the bracket (5).
6. A cable extruder according to claim 1, characterized in that, A first material distributing block (311) is further provided in the spiral groove of the main shaft (31). The first material distributing block (311) is triangular. The sharp angle of the first material distributing block (311) points to the incoming material direction of the spiral groove. At least two first material distributing blocks (311) are arranged side by side.
7. The cable extruder according to claim 1, characterized in that, A second material distributing block (312) is further provided in the spiral groove of the main shaft (31). The second material distributing block (312) is triangular. The sharp angle of the second material distributing block (312) points to the incoming material direction of the spiral groove. The second material distributing block (312) is arranged at the center of the spiral groove.
8. The cable extruder according to claim 7, characterized in that, An aggregate block (313) is further provided in the spiral groove of the main shaft (31). One aggregate block (313) is respectively arranged on both sides of the front end of the second material distributing block (312). The two aggregate blocks (313) and the spiral groove form a funnel shape with an open bottom.
9. The cable extruder according to claim 1, characterized in that, The screw feeder (3) further includes a heating pipe (35). The heating pipe (35) is wrapped around the outside of the second sleeve (32) and the main sleeve (33). The outside of the second sleeve (32), the main sleeve (33), and the discharge pipe (34) is wrapped with a heat insulation sleeve.
10. A cable extruder according to claim 1, characterized in that, The screw feeder (3) further includes a pressure gauge (36). The pressure gauge (36) is installed on the main sleeve (33).